<template>
  <div>
    <table
      border="1"
      width="700"
      style="border-collapse: collapse"
    >
      <caption>
        购物车
      </caption>
      <thead>
        <tr>
          <th>
            <input
              type="checkbox"
              v-model="isAll"
            /> <span>全选</span>
          </th>
          <th>名称</th>
          <th>价格</th>
          <th>数量</th>
          <th>总价</th>
          <th>操作</th>
        </tr>
      </thead>
      <tbody>
        <TableMain
          v-for="(item, index) in goodList"
          :key="index"
          :obj="item"
          :index="index"
          @delFn="delFn"
        />
      </tbody>
      <tfoot>
        <tr>
          <td>合计:</td>
          <td colspan="5">
            <TableFooter :list="goodList"/>
          </td>
        </tr>
      </tfoot>
    </table>
  </div>
</template>

<script>
import TableMain from '@/components/TableMain'
import TableFooter from '@/components/TableFooter'
export default {
  components: {
    TableMain,
    TableFooter
  },
  data() {
    return {
      goodList: [
        {
          name: '诸葛亮',
          price: 1000,
          num: 1,
          checked: false
        },
        {
          name: '蔡文姬',
          price: 1500,
          num: 1,
          checked: false
        },
        {
          name: '妲己',
          price: 2000,
          num: 1,
          checked: false
        },
        {
          name: '鲁班',
          price: 2200,
          num: 1,
          checked: false
        }
      ]
    }
  },
  methods: {
    delFn(index) {
      this.goodList.splice(index, 1)
    }
  },
  // 全选框
  computed: {
    isAll: {
      set(checked) {
        this.goodList.forEach(item => item.checked = checked)
      },
      get() {
        return this.goodList.every(item => item.checked)
      }
    }
  }
}
</script>

<style>
</style>